Iflava competition

I entered Iflava competition last week on monday and on tuesday i got a miss call from+*** ,when i try to call the number it asked me to leave a voicemail but no one gets back to me . Ive been trying to call it since until today. I even called the *** but they told me that they only send sms to winners while my friends have been receiving calls from the same number i got a miss call from. And they never called again for 3 times. I dont know if they want with my prize or not